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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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Part Number
PRICE
Manufacturer
BQ2M020
BQ2M020
In Stock
From
$175.74
Siemens
BVP:262454
BVP:262454
Limited Stock
From
Get Price
Siemens
C4554
C4554
In Stock
From
$1,859.06
Siemens
CCF250
CCF250
In Stock
From
$123.90
Siemens
CCL600
CCL600
In Stock
From
$236.37
Siemens
CF3-L050
CF3-L050
In Stock
From
$101.45
Siemens
DST-SEDN
DST-SEDN
In Stock
From
$202.11
Siemens
E1SFXD63B250N
E1SFXD63B250N
In Stock
From
$2,278.83
Siemens
E2B2020
E2B2020
In Stock
From
$14.55
Siemens
E2B2050
E2B2050
In Stock
From
$19.41
Siemens
E4B1020
E4B1020
In Stock
From
$71.22
Siemens
EF3B02002
EF3B02002
In Stock
From
$302.11
Siemens
EM6B025MS2
EM6B025MS2
In Stock
From
$194.64
Siemens
EQ1-B020
EQ1-B020
In Stock
From
$21.09
Siemens
EQB-330
EQB-330
In Stock
From
$24.20
Siemens
EQB240
EQB240
In Stock
From
$31.44
Siemens
ET-5902
ET-5902
In Stock
From
$436.32
Siemens
ET-5903
ET-5903
In Stock
From
$436.32
Siemens
ET-5905
ET-5905
In Stock
From
$413.34
Siemens
ET1003100
ET1003100
In Stock
From
$150.04
Siemens
ET1197
ET1197
In Stock
From
$195.16
Siemens
ET1567
ET1567
In Stock
From
$91.01
Siemens
ET1569
ET1569
In Stock
From
$391.59
Siemens
ET225-3225
ET225-3225
In Stock
From
$267.02
Siemens
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.